Unity hotkey for minimizing current window?

In Ubuntu 12.04 Unity the shortcuts can be found in:

System Settings | Hardware | Keyboard | Shortcuts | Windows.

In a default installation the keys are the following:

• Maximize: Ctrl+Super+↑
• Restore: Ctrl+Super+↓
• Minimize: Ctrl+Alt+0 (the keypad 0)

• To minimise Alt+Space,N

• To maximise Alt+Space,X

Depending on your internationalization settings the key to press after Alt+Space will be different (e.g. U to minimize with french settings).

To minimize, it is not Ctrl+Super+0 but Ctrl+Alt+0.

It works on 12.04. Remember: Ctrl+Alt+0.